A place like the Right Livers' Rest was bound to draw freaks, same as molasses draws flies. 1935, George Goodchild, chapter 5, in Death on the Centre Court: By one o'clock the place was choc-a-bloc.
Swallowing certain types of poisons may cause excessive salivation. According to the National Library of Medicine, pesticides can cause excessive saliva when they are swallowed. Venom from snake bites or insect stings is another type of poisoning that can cause the malady.
A variety of circumstances can cause these glands to produce too much saliva in some people. This condition can be related to taking certain medicines, having specific medical conditions or as a result of ingesting certain poisons. The average person produces up to 2 quarts (1.9 liters) of saliva a day.